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1. 发明公开

EP2830334A1 Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals 审中-公开
标题翻译：多通道音频译码器，一个多通道音频编码器，方法，计算机程序和经编码的音频表示使用解相关呈现的音频信号
公开(公告)号：EP2830334A1
公开(公告)日：2015-01-28
申请号：EP13189345.5
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sascha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： H04S3/00 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , G10L19/20 , G10L19/22 , G10L19/265 , H04S3/008 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multichannel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.
摘要翻译：用于编码表示的基础上，提供至少两个输出音频信号的多声道音频解码器被配置以使解码的音频信号，它们是在依赖一种或多种呈现编码表示的基础上获得的多元参数，以获得再现的音频信号的复数。该多通道音频解码器被配置为从所呈现的音频信号的一个或多个解相关的音频信号，并且向呈现的音频信号，或缩放版本及其结合，与所述一个或更多个解相关的音频信号，以获得输出音频信号。一种多通道音频编码器提供去相关方法的参数来控制音频解码器。

2. 发明公开

EP2717261A1 Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding 审中-公开
标题翻译：编码器，解码器和方法，用于向后兼容的空间音频对象编码多分辨率
公开(公告)号：EP2717261A1
公开(公告)日：2014-04-09
申请号：EP13167485.5
申请日：2013-05-13
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sascha , Fuchs, Harald , Paulus, Jouni , Terentiv, Leon , Hellmuth, Oliver , Herre, Jürgen
IPC分类号： G10L19/008 , G10L19/02
CPC分类号： G10L19/008 , G10L19/02
摘要： A decoder for generating an un-mixed audio signal comprising a plurality of un-mixed audio channels is provided. Moreover, an encoder and an encoded audio signal is provided. The decoder comprises an un-mixing-information determiner for determining un-mixing information by receiving first parametric side information on the at least one audio object signal and second parametric side information on the at least one audio object signal, wherein the frequency resolution of the second parametric side information is higher than the frequency resolution of the first parametric side information. Moreover, the decoder comprises an un-mix module for applying the un-mixing information on a downmix signal, indicating a downmix of at least one audio object signal, to obtain an un-mixed audio signal comprising the plurality of un-mixed audio channels. The un-mixing-information determiner is configured to determine the un-mixing information by modifying the first parametric information and the second parametric information to obtain modified parametric information, such that the modified parametric information has a frequency resolution which is higher than the first frequency resolution.
摘要翻译：提供了一种用于在非混合音频信号产生包括未混合音频信道与多个解码器。更完了，在编码器和编码的音频信号被提供。通过接收关于在所述至少一个音频对象信号的所述至少一个音频对象信号，并且第二参数侧信息的第一参数侧信息，worin的频率分辨率的解码器，用于确定开采未混合信息未混合-信息确定包括第二参数侧信息比的第一参量侧信息的频率分辨率越高。更上方，所述解码器包括到未混合组件用于施加上的下混信号的未混合的信息，表示至少一个音频对象信号的下混合，以获得包含未混合的音频信道的所述多个未混合音频信号，未混合信息确定器被配置为确定矿的未混合通过修改第一参数信息和第二参数的信息，以获得修改的参数信息，检查做了修改的参数信息的频率分辨率的所有比所述第一频率高分辨率。

3. 发明公开

EP2830333A1 Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals 审中-公开
标题翻译：多通道去相关器中，多通道音频译码器，一个多通道音频编码器，方法和Dekorrelatoreingangssignalen的计算机程序预混
公开(公告)号：EP2830333A1
公开(公告)日：2015-01-28
申请号：EP13189339.8
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sascha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： H04S3/00 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , G10L19/20 , G10L19/22 , G10L19/265 , H04S3/008 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
摘要翻译：对于去相关器的输入信号的多个基础上提供去相关信号的多个A多通道去相关器被配置为预混合的第一组N个去相关器输入信号的成第二集合K解相关器输入信号的，worinķ K”。多通道去相关器可以在多通道音频译码器一起使用。一种多通道音频编码器提供对多通道去相关器的复杂性的控制信息。

4. 发明公开

EP2830050A1 Apparatus and method for enhanced spatial audio object coding 审中-公开
标题翻译： Vorrichtung und Verfahren zur verb desserten Codierung einesräumlichenAudioobjekts
公开(公告)号：EP2830050A1
公开(公告)日：2015-01-28
申请号：EP13189290.3
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sasacha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels. One or more audio channel signals are mixed within the audio transport signal, and one or more audio object signals are mixed within the transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the one or more audio channel signals plus the number of the one or more audio object signals. The parameter processor (110) is configured to receive downmix information indicating information on how the one or more audio channel signals and the one or more audio object signals are mixed within the one or more audio transport channels, and wherein the parameter processor (110) is configured to receive covariance information. Moreover, the parameter processor (110) is configured to calculate the mixing information depending on the downmix information and depending on the covariance information. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the mixing information. The information indicates a level difference information for at least one of the one or more audio channel signals and further indicates a level difference information for at least one of the one or more audio object signals. However, the covariance information does not indicate correlation information for any pair of one of the one or more audio channel signals and one of the one or more audio object signals.
摘要翻译：提供了一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算混合信息的参数处理器（110）和用于生成一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号。一个或多个音频信道信号在音频传输信号内混合，并且一个或多个音频对象信号在传输信号内混合，并且其中一个或多个音频传输信道的数量小于一个或多个音频通道信号加上一个或多个音频对象信号的数量。参数处理器（110）被配置为接收指示关于一个或多个音频信道信号和一个或多个音频对象信号如何在一个或多个音频传输信道内混合的信息的下混信息，并且其中参数处理器（110）被配置为接收协方差信息。此外，参数处理器（110）被配置为根据缩混信息并根据协方差信息来计算混合信息。下混合处理器（120）被配置为根据混合信息从音频传输信号生成一个或多个音频输出信道。该信息指示一个或多个音频信道信号中的至少一个音频信道信号的电平差信息，并进一步指示一个或多个音频对象信号中的至少一个音频对象信号的电平差信息。然而，协方差信息并不表示一个或多个音频信道信号中的任何一个与一个或多个音频对象信号之一的相关信息。

5. 发明公开

EP2830048A1 Apparatus and method for realizing a SAOC downmix of 3D audio content 审中-公开
标题翻译： Vorrichtung und Verfahren zur Realisierung eines SAOC-Downmix von 3D-Audioinhalt
公开(公告)号：EP2830048A1
公开(公告)日：2015-01-28
申请号：EP13189281.2
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sascha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Ridderbusch, Falko , Paulus, Jouni , Terentiv, Leon
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating output channel mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels to obtain the one or more audio transport channels of the audio transport signal. The parameter processor (110) is configured to receive information on the second mixing rule, wherein the information on the second mixing rule indicates how to mix the plurality of premixed signals such that the one or more audio transport channels are obtained. Moreover, the parameter processor (110) is configured to calculate the output channel mixing information depending on an audio objects number indicating the number of the two or more audio object signals, depending on a premixed channels number indicating the number of the plurality of premixed channels, and depending on the information on the second mixing rule. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the output channel mixing information.
摘要翻译：提供了一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算输出通道混合信息的参数处理器（110）和用于产生一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号，其中在音频传输信号内混合两个或多个音频对象信号，并且其中一个或多个音频传输信道的数量为小于两个或更多个音频对象信号的数量。音频传输信号取决于第一混合规则和第二混合规则。第一混合规则指示如何混合两个或多个音频对象信号以获得多个预混频道。此外，第二混合规则指示如何混合多个预混频道以获得音频传输信号的一个或多个音频传输信道。参数处理器（110）被配置为接收关于第二混合规则的信息，其中关于第二混合规则的信息指示如何混合多个预混合信号，使得获得一个或多个音频传输信道。此外，参数处理器（110）被配置为根据指示多个预混频道的数量的预设频道号码，根据指示两个或多个音频对象信号的数量的音频对象号来计算输出频道混合信息，并且取决于关于第二混合规则的信息。下混合处理器（120）被配置为根据输出信道混合信息从音频传输信号生成一个或多个音频输出信道。

6. 发明公开

EP3419315A1 MULTI-CHANNEL DECORRELATOR, MULTI-CHANNEL AUDIO ENCODER, METHOD AND COMPUTER PROGRAM USING A PREMIX OF DECORRELATOR INPUT SIGNALS 有权转让
公开(公告)号：EP3419315A1
公开(公告)日：2018-12-26
申请号：EP18178666.6
申请日：2014-07-17
申请人： FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： H04S3/00 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , G10L19/20 , G10L19/22 , G10L19/265 , H04S3/008 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.

7. 发明公开

EP3996089A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR PROVIDING ADJUSTED PARAMETERS 审中-实审
公开(公告)号：EP3996089A1
公开(公告)日：2022-05-11
申请号：EP21198132.9
申请日：2010-10-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Herre, Jürgen , Falch, Cornelia , Terentiv, Leon
IPC分类号： G10L19/008
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and a parametric side information associated with the downmix signal representation comprises a parameter adjuster. The parameter adjuster is configured to receive one or more parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on an average value of a plurality of parameter values, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for parameters deviating from optimal parameters by more than a predetermined deviation.

8. 发明公开

EP3419314A1 MULTI-CHANNEL DECORRELATOR, METHOD AND COMPUTER PROGRAM USING A PREMIX OF DECORRELATOR INPUT SIGNALS 有权转让
公开(公告)号：EP3419314A1
公开(公告)日：2018-12-26
申请号：EP18178664.1
申请日：2014-07-17
申请人： FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： H04S3/00 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , G10L19/20 , G10L19/22 , G10L19/265 , H04S3/008 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.

9. 发明公开

EP2816555A1 Audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权转让
标题翻译：音频信号编码器，音频比特流，使用对象相关参数信息的方法和计算机程序
公开(公告)号：EP2816555A1
公开(公告)日：2014-12-24
申请号：EP14180279.3
申请日：2010-04-28
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： Herre, Jürgen , Hölzer, Andreas , Terentiv, Leon , Falch, Cornelia , Purnhagen, Heiko , Engdegard, Jonas , Ridderbusch, Falko , Kastner, Thorsten
IPC分类号： G10L19/008 , G10L19/20
CPC分类号： G10L19/008 , G10L19/20
摘要： An audio signal encoder (600) for providing a downmix signal representation (614) and an object-related parametric information (616) on the basis of a plurality of object signals (x 1 to x N ) comprises a downmixer (620) configured to provide one or more downmix signals in dependence on downmix coefficients (d 1 to d N ) associated with the object signals (x 1 to x N ), such that the one or more downmix signals comprise a superposition of a plurality of object signals, and a side information provider (630) configured to provide an inter-object-relationship side information (OLD, IOC) describing level differences and correlation characteristics of object signals (x 1 to x N ) and an individual-object side information describing one or more individual properties of the individual object signals (x 1 to x N ).
摘要翻译：用于提供下混信号表示（614）和音频信号编码器（600）对象有关的对象信号（X 1至X N）的多个的基础上的参数信息（616）包括被配置成一个下混频器（620）在与所述对象信号（X 1至X N）相关联的缩混系数（D 1至D N）的依赖性提供一个或多个下混合信号，审查没有所述一个或多个下混合信号包括对象信号的多个叠加，并配置一个辅助信息提供者（630），以提供到对象间关系的辅助信息（OLD，IOC）描述电平差和对象信号（X 1至X N）的相关特性，以及单个对象侧信息描述的一个或多个各个对象信号的个人属性（x 1至x N）。

10. 发明授权

EP2816555B1 Audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权转让
标题翻译：音频信号编码器，音频比特流，使用对象相关参数信息的方法和计算机程序
公开(公告)号：EP2816555B1
公开(公告)日：2016-03-23
申请号：EP14180279.3
申请日：2010-04-28
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： Herre, Jürgen , Hölzer, Andreas , Terentiv, Leon , Falch, Cornelia , Purnhagen, Heiko , Engdegard, Jonas , Ridderbusch, Falko , Kastner, Thorsten
IPC分类号： G10L19/008 , G10L19/20
CPC分类号： G10L19/008 , G10L19/20
摘要： An audio signal encoder (600) for providing a downmix signal representation (614) and an object-related parametric information (616) on the basis of a plurality of object signals (x 1 to x N ) comprises a downmixer (620) configured to provide one or more downmix signals in dependence on downmix coefficients (d 1 to d N ) associated with the object signals (x 1 to x N ), such that the one or more downmix signals comprise a superposition of a plurality of object signals, and a side information provider (630) configured to provide an inter-object-relationship side information (OLD, IOC) describing level differences and correlation characteristics of object signals (x 1 to x N ) and an individual-object side information describing one or more individual properties of the individual object signals (x 1 to x N ).

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